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Method for compositing storage hydrogen from hydrogen cage-type compound

A compound and organic compound technology, applied in the field of hydrogen clathrate composite hydrogen storage, can solve the problems of mild gas storage conditions, high gas storage density, low gas storage density, etc., achieve mild hydrogen storage conditions, improve high-pressure conditions, and transport safe effect

Active Publication Date: 2012-05-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The current hydrate hydrogen storage method requires high pressure, slow gas storage speed, low gas storage density, and the gas storage material cannot be recycled, and it is a single gas storage method, which is difficult to promote in the industry. Therefore, the present invention proposes a An organic compound cage type composite hydrogen storage method, which has rapid hydrogen storage, mild gas storage conditions, high gas storage density, etc., and is a gas storage material that composites hydrogen storage in two ways

Method used

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  • Method for compositing storage hydrogen from hydrogen cage-type compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 0.5g p-benzoquinone is dissolved in acetone to form an acetone solution whose mass fraction is 80% p-benzoquinone, and the catalyst Pd / RuO 2 / TiO 2 The molecular sieves were impregnated in the acetone solution of p-benzoquinone for 2 days, then taken out and put into the autoclave. Seal the high-pressure reaction kettle, pump out the air in the kettle to make the vacuum degree 0.1MPa, and pass the cooling liquid (0°C, ethylene glycol) in a constant temperature cold bath. After the temperature in the kettle is lowered to 0°C and stabilized, open the hydrogen inlet valve , adjust the pressure in the kettle, adjust the pressure to 1MPa (P 1 ), stop the hydrogen flow, turn on the light source, so that the inside of the high-pressure reactor is in an environment with light and catalyst. After the pressure is stabilized, 0.3MPa(P 2 ), the organic hydrogen cage compound is completely generated, the light source is turned off, and the hydrogen storage ends. The hydrogen sto...

Embodiment 2

[0041] Dissolve 1g benzaldehyde in acetone solution, its mass fraction is 50%, will be loaded with anatase type TiO 2The molecular sieve of the catalyst is impregnated in the acetone solution of benzaldehyde, taken out after impregnated for 3 days, and put into a high-pressure reactor. Seal the high-pressure reaction kettle, pump out the air in the kettle to make the vacuum degree 0.3MPa, and pass the cooling liquid (5°C, ethylene glycol) in a constant temperature cold bath. After the temperature in the kettle drops to 5°C and stabilizes, open the hydrogen gas inlet valve , adjust the pressure in the kettle, adjust the pressure to 10MPa (P 1 ), stop the hydrogen flow, turn on the light source, so that the inside of the high-pressure reactor is in an environment with light and catalyst. After the pressure stabilizes, it is 2.5MPa(P 2 ), the organic hydrogen cage compound is completely generated, and the hydrogen storage ends when the light source is turned off.

[0042] The ...

Embodiment 3

[0045] 0.5g benzophenone is dissolved in acetone, forms the benzophenone acetone solution that mass fraction is 60%, load-type ruthenium catalyst (Ru / γ-Al 2 o 3 ) molecular sieves were impregnated in the acetone solution of benzophenone, impregnated for 2 days, taken out and put into the autoclave. Seal the high-pressure reaction kettle, pump out the air in the kettle to make the vacuum degree 0.4MPa, pass the liquid (20°C, ethylene glycol) in a constant temperature cold bath, and wait for the temperature in the kettle to drop to 20°C. After stabilization, open the hydrogen gas inlet valve, Adjust the pressure in the kettle to adjust the pressure to 20MPa (P 1 ), stop the hydrogen flow, turn on the light source, so that the inside of the high-pressure reactor is in an environment with light and catalyst. After the pressure stabilizes, it is 6.8MPa(P 2 ), the organic hydrogen cage compound is completely generated, the light source is turned off, and the hydrogen storage ends...

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Abstract

The invention discloses a method for compositing storage hydrogen from a hydrogen cage-type compound; organic matter serves as hydrogen storage material, and simultaneously two methods are adopted to composite the storage hydrogen; the hydrogen not only can exist on a cage-type main molecule body in the form of a proton, but also can be stored in a cage-type hole in the form of a hydrogen molecule. The hydrogen storage material of the invention stores hydrogen in two ways, and the alcohol and the phenol of the main skeleton molecule body which forms hydrate store the hydrogen in the form of protons; hydrogen bonds between the organic molecules interact to form an inclusion compound, and the hydrogen molecules serve as guest molecules and are wrapped in the cage-type hole; the gas storage density is high and can be improved by 100 to 300 percent compared with pure hydrate storage hydrogen; and the gas storage conditions are mild.

Description

technical field [0001] The invention relates to the technical field of hydrogen energy utilization and storage, in particular to a method for composite hydrogen storage of hydrogen cage compounds. Organic matter is used as a hydrogen storage material to composite hydrogen storage in two ways at the same time. It exists in the form of protons, and can also be in cage-type holes as hydrogen molecules. technical background [0002] Hydrogen is a renewable and clean energy source with a wide range of sources. Its combustion product is water, which is extremely friendly to the environment. It has become the most ideal fuel for fuel cells and hydrogen internal combustion engines. With the continuous improvement of fuel cell technology, the use of hydrogen will be further expanded, and the use of hydrogen energy has been highly valued by governments, automobile companies, energy companies and environmental organizations. However, hydrogen exists in the form of gas at normal temper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/02C07C39/08C07C37/07C07C29/145C07C29/141C07C33/22
Inventor 樊栓狮陈玉娟郎雪梅王燕鸿
Owner SOUTH CHINA UNIV OF TECH
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